Efficient modelling of rain field microwave attenuation and doppler noise for different drop size distributions

Author

Siart, Uwe ; Hipp, Susanne ; Eibert, Thomas ; Chwala, Christian ; Kunstmann, Harald

Author_Institution

Inst. for High-Freq. Eng., Tech. Univ. Munchen, München, Germany

fYear

2012

fDate

5-9 March 2012

Firstpage

1

Lastpage

3

Abstract

This work presents strategies to significantly improve the numerical efficiency and the accuracy of a simulator for electromagnetic scattering by rain which considers every single rain drop within a given volume. By also considering power extinction the rain-rate dependent signal attenuation is modeled in addition to the rain-rate dependent noise. In order to improve the efficiency of Mie scattering computation the evaluation of Bessel functions has been accelerated. Furthermore this paper presents investigations for downsizing the total simulation volume while retaining the signal´s statistical properties.

Keywords

Bessel functions; Doppler effect; Mie scattering; atmospheric electromagnetic wave propagation; atmospheric optics; atmospheric techniques; drops; rain; Bessel function; Doppler noise; Mie scattering computation; drop size distribution; electromagnetic scattering; power extinction; rain field microwave attenuation; rain-rate dependent noise; rain-rate dependent signal attenuation; Silicon;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Radiometry and Remote Sensing of the Environment (MicroRad), 2012 12th Specialist Meeting on

Conference_Location

Rome

Print_ISBN

978-1-4673-1468-8

Type

conf

DOI

10.1109/MicroRad.2012.6185245

Filename

6185245